Measuring Wander - HP OMNIBER 718 37718A User Manual

Description:
HOW TO:
Making Measurements

Measuring Wander

Measuring Wander
Accurate Wander measurements require a Wander reference derived
from the SONET Clock module. Wander results are displayed in UI and
nanoseconds and Jitter Amplitude and Jitter Hits results are available.
When wander is measured at 2 Mb/s, Estimated Bit and Frame slips are
calculated and a Bar Graph shows the cumulative Wander over the
measurement period.
Make the Measurement
1 To obtain the Wander reference from the DSn transmitter connect
REF OUT on the SONET Clock module to REF IN on the DSn Jitter
TX module. Choose SIGNAL
MAIN SETTINGS
choose the SOURCE required from the menu. See "Setting DSn
Transmit Interface" page 2.
2 To obtain the Wander reference from the SONET transmitter choose
the required reference from the CLOCK menu on the
MAIN SETTINGS
3 If measuring wander at a DSn rate set up the DSn receive interface.
See, "Setting DSn Receive Interface" page 15.
on the
2 Mb/s
display, choose CLOCK SYNC
display. See, "Setting SONET Transmit Interface" page 4.
PDH/DSn
TRANSMIT
WANDER REF IN
SONET
TRANSMIT
and
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